論文

査読有り
2018年

Electrochemical study on aluminum speciation in Lewis acidic chloroaluminate-bis(trifluoromethylsulfonyl)amide mixed ionic liquids

Electrochemistry
  • Yasushi Katayama
  • ,
  • Takumi Wakayama
  • ,
  • Naoki Tachikawa
  • ,
  • Kazuki Yoshii
  • ,
  • Nobuyuki Serizawa

86
2
開始ページ
42
終了ページ
45
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.5796/electrochemistry.17-00077
出版者・発行元
Electrochemical Society of Japan

Aluminum species forming in Lewis acidic chloroaluminate and bis(trifluoromethylsulfonyl)amide (TFSA-) mixed ionic liquids having 1-butyl-3-methylimidazolium (BMI+) was investigated by potentiometry and Raman spectroscopy. A decrease in the concentration of [Al2Cl7]- and an increase in that of [AlCl4]- with addition of BMITFSA into acidic BMICl-AlCl3 were observed by Raman spectroscopy. The redox potential of Al(III)/Al in BMICl-AlCl3 (1:2 in molar ratio) was found to be -0.68V vs. an Ag|Ag(I) reference electrode, which was corresponding to -0.25V vs. the ferrocene/ferrocenium couple at 25°C. The potentiometry of an Al electrode in the mixed ionic liquids with different compositions using the Ag|Ag(I) reference electrode suggested formation of a mixed ligand aluminum complex, Al(TFSA)Cl2, indicating the instability of [Al2Cl7]- against TFSA-.

Web of Science ® 被引用回数 : 4

リンク情報
DOI
https://doi.org/10.5796/electrochemistry.17-00077
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000463083600008&DestApp=WOS_CPL

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